硼/铬酸钡延期药的燃速与数值分析

Numerical Simulation and Burning Rate of Boron/Barium Chromate (B/BaGrO_4) Delay Powder

为了研究硼/铬酸钡延期药在温度为-15～50℃,硼含量为2%～14%范围内燃速变化规律。对硼/铬酸钡延期药的燃速的实验数据采用最小二乘法进行模拟,提出了硼/铬酸钡延期药的经验燃速公式。结果表明;当硼含量为2%时,硼/铬酸钡延期药不能完全燃烧,出现瞎火;在硼含量为4%～14%时,随着硼含量的增加,燃速加大;在硼含量一定时,随着温度的提高,硼/铬酸钡延期药的燃速也出现小幅提高。

The law of the burning rates of B/BaGrO4 was studied on the condition of delay powder at ambient temperature from-15℃ to 50℃,and the boron content range from 2% to 14%.The least square method was used to simulate the burning rates and a burning rate equation of B/BaGrO4 delay powder was put forward.Results show that when the boron content was 2%,the B/BaGrO4 delay powder misfired;the burning rates increased with boron contents range from 4% to 14%.When the ambient temperature rose,the burning rate also increased a little.